Pupae Transfer Device Using Vacuum Pressure Differential
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Solution Overview
Problem
Current methods for transporting insect pupae are inefficient and prone to damage or escape, particularly during transfer between locations in Sterile Insect Technique (SIT) programs, as they rely on manual handling or gravity, which can lead to spills, damage, and low throughput.
Innovation Solution
A system comprising a holding tank, transfer chamber, and delivery tube with a vacuum device to draw insect pupae in an aqueous solution through a delivery tube, using a depth measurement system to control the transfer process and ensure secure, efficient transport without damage or loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual handling or gravity feed methods are used to transfer insect pupae, then the device complexity is low, but the reliability is poor due to escape and damage risks
Solution Approach 1:
The patent applies pneumatic principles by using pressure differentials between the holding tank and transfer chamber to move insect pupae through a delivery tube. The system controls air pressure to draw pupae from the holding tank and release them into the transfer chamber, eliminating manual handling and gravity-dependent methods while improving transfer reliability without requiring complex mechanical structures
Solution Approach 2:
The system changes the physical parameter of air pressure to control the transfer process. By adjusting pressure differential between tanks, the system can reliably control pupae movement, preventing escape and damage while maintaining relatively simple device architecture
2Productivity
If traditional transfer methods are used, then the device complexity is low, but the productivity is low due to inefficient transfer processes
Solution Approach 1:
The pneumatic system enables rapid, controlled transfer of insect pupae by using pressure differentials to move large quantities efficiently through the delivery tube, significantly improving productivity compared to manual or gravity-based methods while keeping the overall system structure relatively simple
Solution Approach 2:
The system maintains continuous transfer capability by using pressure control to repeatedly draw and release pupae, eliminating interruptions associated with manual handling and enabling sustained high-throughput operations
3Loss of substance
If gravity feed methods are used, then the device complexity is low, but the loss of substance is high due to spills and escape
Solution Approach 1:
The pneumatic transfer system prevents pupae loss by using controlled pressure differentials to draw pupae through a sealed delivery tube, eliminating spills associated with gravity feed and manual handling. The controlled release mechanism ensures pupae are transferred intact without escape
Solution Approach 2:
The delivery tube acts as a flexible sealed conduit that contains and transports pupae securely, preventing escape and spillage while allowing the system to maintain relatively simple structure without requiring rigid complex containment mechanisms
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system enables secure, efficient, and high-throughput transport of insect pupae between locations, reducing the risk of damage and escape, and allowing for vertical and horizontal movement, improving the efficiency and safety of SIT program operations.
Implementation Method 1
reducing an air pressure in the transfer chamber by removing air from the transfer chamber using an evacuation device... drawing, via the reduced air pressure, a portion of the aqueous solution including the insect pupae from the holding tank into the transfer chamber
Data Source
AI summary
Devices, systems, and methods for transporting or transferring insect pupae in an aqueous solution are described. The system includes a tank containing a solution with insect pupae, a transfer chamber having an outlet at a bottom portion of the chamber, a solution inlet, an evacuation channel, and a depth measurement system. A tube fluidly connects to tank and the transfer chamber. An evacuation device connected to the evacuation channel removes air from the transfer chamber and generates a vacuum therein to draw the solution through the tube into the transfer chamber.